Home / 211,391,034.85-291,719,030.88-117,319,384.45

Finding the Fourth Proportional to 211,391,034.85, 291,719,030.88 and 117,319,384.45

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Solution

The fourth proportional to 211,391,034.85, 291,719,030.88 and 117,319,384.45 is: 161,900,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,391,034.85 : 291,719,030.88 = 117,319,384.45 : x
  2. Step 2: Convert to fraction form
    211,391,034.85/291,719,030.88 = 117,319,384.45/x
  3. Step 3: Cross multiply
    211,391,034.85x = 291,719,030.88 × 117,319,384.45
  4. Step 4: Simplify right side
    211,391,034.85x = 34,224,297,135,192,144
  5. Step 5: Solve for x
    x = 34,224,297,135,192,144/211,391,034.85
  6. Step 6: Final answer
    x = 161,900,419.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.